Horace Logan

He served in the United States Army from 1942 to 1945 during World War II and upon his return to Louisiana opened a gun repair shop.

In 1948, he started booking talent for a new weekly music show called the Louisiana Hayride before a live studio audience at the Shreveport Municipal Memorial Auditorium and broadcast nationally over the CBS Radio network.

[2] The Louisiana Hayride became known as the "Cradle of the Stars" launching the careers of Hank Williams, Slim Whitman, Johnny Cash, and Elvis Presley.

Logan first used the phrase "Elvis has left the building" in December 1956 to convince overexcited fans to calm down after Presley performed.

[3] After Logan left "The Hayride," he worked in California and Florida and spent a decade in the Dallas–Fort Worth Metroplex, where he was the producer of Big D Jamboree, which featured among others Willie Nelson.